The recent peculiar behaviour of the Be star, HD 200120, 59 CYG

Details The recent peculiar behaviour of the Be star, HD 200120, 59 CYG The recent peculiar behaviour of the Be star, HD 200120, 59 CYG

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26as...44..109h&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 44, Apr. 1981, p. 109-114.

Astronomy and Astrophysics

Astrophysics

15

B Stars, Early Stars, Emission Spectra, Stellar Spectra, Variable Stars, H Lines, Metals, Stellar Envelopes, Stellar Mass Ejection

Scientific paper

This paper gives a detailed description of the spectacular behavior of the early Be star HD 200120, 59 Cyg from 1972 to 1976. This star, after having shown V/R variations in the emission line profiles, exhibited enhancements of the emission lines followed by a shell phase in mid-1973, in December 1974 and 1975. The second enhancement of the emission from the end of 1973 to mid-1974 was very prominent and the second shell phase was also much more important than that of 1973. A similar behavior of the temporary enhancement of the emission features and shell phases was also found in the literature for gamma Cas, another early Be star.

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